hi!
just type "lspci" (as root) in console. there will be an output like this:
Code:
kai@schlepptop:~$ sudo lspci
Password:
0000:00:00.0 Host bridge: Intel Corp. Mobile Memory Controller Hub (rev 03)
0000:00:02.0 VGA compatible controller: Intel Corp. Mobile Graphics Controller (rev 03)
0000:00:02.1 Display controller: Intel Corp. Mobile Graphics Controller (rev 03)0000:00:1c.0 PCI bridge: Intel Corp. 82801FB/FBM/FR/FW/FRW (ICH6 Family) PCI Express Port 1 (rev 03)
0000:00:1d.0 USB Controller: Intel Corp. 82801FB/FBM/FR/FW/FRW (ICH6 Family) USB UHCI #1 (rev 03)
0000:00:1d.1 USB Controller: Intel Corp. 82801FB/FBM/FR/FW/FRW (ICH6 Family) USB UHCI #2 (rev 03)
0000:00:1d.2 USB Controller: Intel Corp. 82801FB/FBM/FR/FW/FRW (ICH6 Family) USB UHCI #3 (rev 03)
0000:00:1d.3 USB Controller: Intel Corp. 82801FB/FBM/FR/FW/FRW (ICH6 Family) USB UHCI #4 (rev 03)
0000:00:1d.7 USB Controller: Intel Corp. 82801FB/FBM/FR/FW/FRW (ICH6 Family) USB2 EHCI Controller (rev 03)
In This example, you fing VGA compatible controler at id 0000:00:02:0 and 0000:00:02.1. In xorg.conf, this results in the following busid:
BusID "PCI:0:2:0" and BusID "PCI:0:2:1"
my xorg uses the first. dunno what the second is for
btw, lspci means afaik "list pci". there is also lsmod, lsusb and maybe more. these tools can really help :-)
cheers,
kai